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                烁烁的游戏                </h1>
                <p>时间限制：30s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：512MB</p>			</div>
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                                <h3>题目描述</h3><p><p>背景：烁烁很喜欢爬树，这吓坏了树上的皮皮鼠。<br />
题意：<br />
给定一颗n个节点的树，边权均为1，初始树上没有皮皮鼠。<br />
烁烁他每次会跳到一个节点u，把周围与他距离不超过d的节点各吸引出w只皮皮鼠。皮皮鼠会被烁烁吸引，所以会一直待在节点上不动。<br />
烁烁很好奇，在当前时刻，节点u有多少个他的好朋友---皮皮鼠。<br />
大意：<br />
给一颗n个节点的树，边权均为1，初始点权均为0，m次操作：<br />
Q x：询问x的点权。<br />
M x d w：将树上与节点x距离不超过d的节点的点权均加上w。</p></p><hr/><h3>输入格式</h3><p><p>第一行两个正整数：n，m<br />
接下来的n-1行，每行三个正整数u，v，代表u，v之间有一条边。<br />
接下来的m行，每行给出上述两种操作中的一种。</p></p><hr/><h3>输出格式</h3><p><p>对于每个Q操作，输出当前x节点的皮皮鼠数量。</p></p><hr/><h3>样例输入</h3><pre>7 6
1 2
1 4
1 5
2 3
2 7
5 6
M 1 1 2
Q 5
M 2 2 3
Q 3
M 1 2 1
Q 2</pre><hr/><h3>样例输出</h3><pre>2
3
6
</pre><hr/><h3>提示</h3><p><p>数据范围：<br />
n，m&lt;=10^5,|w|&lt;=10^4<br />
注意：w不一定为正整数，因为烁烁可能把皮皮鼠吓傻了。</p></p><hr/><h3>题目来源</h3><p>没有写明来源</p>
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